kayobe/ansible/roles/kolla-ansible-host-vars/tasks/main.yml
Mark Goddard b12f9e35e5 Performance: Parallelise Kolla Ansible host vars generation
Kayobe generates a host_vars file for each host in the Kolla Ansible
inventory. These contain network interfaces and other host-specific
things. Currently this is done by iterating over all hosts, which does
not scale well with a large number of hosts.

This change extracts the host vars generation into a separate role, and
executes it in a play targeted at all hosts, with delegate_to:
localhost. This ensures that host variable files are generated in
parallel.

Story: 2007993
Task: 40629

Change-Id: Iae75e17024adee9c2874c14d3ed36f4c87ba48d7
2020-09-22 17:06:04 +01:00

16 lines
419 B
YAML

---
- name: Ensure the Kolla Ansible host vars directory exists
file:
path: "{{ kolla_ansible_inventory_path }}/host_vars"
state: directory
mode: 0750
run_once: true
delegate_to: localhost
- name: Ensure the Kolla Ansible host vars file exists
template:
src: host-vars.j2
dest: "{{ kolla_ansible_inventory_path }}/host_vars/{{ inventory_hostname }}"
mode: 0640
delegate_to: localhost